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Wireless/wifi ubuntu 10.10 problem

hello
i recently installed ubuntu 10.10 on my Vaio laptop(VGN-NW_23 NE), however i have some problem with my wireless/wifi connection.
as i enter the key for my WPA & WPA2 connection ,the wireless applet keeps on trying to connect to the wireless but fails everytime and keeps on asking for the key again and again.
my Lan is working fine and i had not this problem in Ubuntu 9.10, which i just removed in favour of 10.10 !!!!

go to the control center of Admin (?) or preferences and open the Drivers utility. have it search for updated drivers. I was setting up a laptop for someone with 10.10 and had to install an updated wireless driver using this util to get the wireless NIC to work right. It seemed to be the only driver that needed that attention.

Hi,
Try at first to fix the applet settings.
Right Mouse Click -> Edit Connections -> Wireless
Delete the connections except for yours.

Try to connect (restart the modem, or replug the wireless tub, or restart the computer).
If the error persists try the following:
Left Mouse Click -> Connect to Hidden Wireless -> Connection
and select from there your connection.

If the keyring appears on your connection clear and reset the keyrings:
$ rm ~/.gnome2/keyrings/default.keyring

Atheros Communications Inc. is mad wifi there is problem with it. You
must install hostpad and collect-core un ubuntu, to slow the problem
with this hardware. Sometimes you must deinstall and Bluetooth driver
which is in collision with Atherous .

Hi,
Connect the LAN & ping to wireless device. It may happen that someone has
change the passphrase of wifi network key after putting details on Ubuntu
wifi. If not then checkout following commands: Note before using read the
man pages:

iwlist,
iwevent,
iwconfig,
iwgetid,
iwspy,
iwpriv.

still having the problem then delete the wifi entry from
network-manager-applet & reenter correctly.
Good Luck.